Project Astrovan

[chewie]

hey guys ill be building a astro van very shortly. and i had a few questions.

ill be using four fi audo btl 18s and two hifonics xxv goliath amps. (two optima yellow tops per amp and one under the hood ) and big three upgrade (one 300 amp alternator or will i need two ? )

and a older alpine head unit

first question would be subs up port back be better than subs up port up. ?

what kind of signal processors should i be looking at or should my alpine work fine. (sounds amazing on aftermarket speakers by itself )

has seperate sub and frequency adjustment on it and i can change the frequency crossover on each speaker individually

ill be replacing all the side rear windows with 1/8th inch steel plate.

do i need dynamat or can i put 1 inch mdf on the walls and ceiling and fill in the gap with expandable foam?

what options should i get on the btls it will be used for music as well. it wont be a one note wonder car.

i pmed mr meade about the speakers and still waiting for a reply but any help is greatly appreciated.

[RamenNoodles]

Well Randy (assman) only has one alternator in his van on a little over 20k watts but he does have 16 Kinetik 2400s. Its always better to have more but 1 will work, you will just need some juice to back it up.

And wall that bish off, dont just do a big box.

For this type of thing, send assman a PM with some of your questions since he works with an astro van.

[chewie]

i should probably know this but why would walling it off be better than a big box ?

i really dont have the money for 16 kenetics

so i figured two yellowtops per amp and one under hte hood with one 300 amp alt or two wouldsuffice

btw heres the van

[assman]

Multiple alts are better,i drop to 12 volts when playing mine.I will be putting a second one in sometime in the near future.AS far as a box or wall,a wall will get louder then having a big box firing up.It will cut the cabin area down.

[Forevrbumpn]

get higher numbers walled

[chewie]

cabin space really doesnt matter

id REALLY like to keep the second row seat id really hate to have the wall right at the back of the front seats.

[assman]

Here is a pic of my asstro when i had 6 BTL 18's in it.The box was all wrong,i was trying to use the box that was in there and didnt work for me.

[chewie]

well randy sounds like me and you are gonna have many conversations over the next few weeks.

i have many questions and i hope you have many awnsers ive built boxes but ive never built a wall . your gonna have to give me the lowdown. (if you dont mind )

[assman]

Im not the best at tuning a box but i will help as much as i can.I think doing a regular box for 4 18's i dont think you will have much room for everything.A buddy of mine had 4 18's and 2 soundstream 10000's in his van but it didnt seem to have much room for any more batts.You could also do a wall behind the second row of seats,well build a box and put it in standing up and fill around the edges would be easiest way to do it.

[chewie]

that sounds like a good idea id really like to keep it behind the second row of seats